Wild-pea separator



c. L. PALMER AND J. RL'HoLLlsl-:ILV WILD PEA sEPARATon. APPLICATION FILED JUNE I6, 1919. 1,368,746.

c. L. PALMER AND1. R. HOLLISTEH.

WILD PEA SEPARATOR. APPLICATION r;LEn1uNE|6,19|9.

l,368,746 Patented Feb; 15, 1921.

3 SHEETS-SHEET 2- c. L.' PALMER AND J. R. HoLusTErL WILD PEA SEPARATOR. Y APPLICATION FILED JUNE IG, I9I9.

Patented Feb. l5, R923;

3 SHEETS-SHEET 3.

W/ TMs-'5.5

narran stares CHARLES L. PALMER AND JOHN E. HOLLISTER, AF SLEEPY EYE, MINNESOTA.

WILD-PEA SEPARATOR.

Speccation of Letters Patent. :Pallieiitd ldbi5, 1921- Appiicanon sied .Tune 1a, 191e. serial no. 304,391.

l United States, residents Vof Sleepy Eye,

county of Brown, State of Minnesota, have invented certain new and useful Improve- .ments in Vild-Pea- Separatore, of which the following is a specification.

The object of our, invention is to p rovide a machine designed for separating wild peas from wheat and other grains in which advantage is taken of the diderence in shape of the kernels of grain .and the peas, the grain lying flat upon the supporting pans or plates and being shifted thereon through the movement of the platesy while the peas loosened and separated from the grain by such movement, roll down the in- .cline of the plates and thereby become sep- 4 arated from the, grainl which is discharged at the upper end. of the plates.

A further object is to provide a machine in which the separating surfaces may be conveniently multiplied and the capacity of the machine thereby increasedV to Aany desired degree. p Y Other objectsof the invention will appear Y from the following detailed description.

The invention consistsl .general-ly in variousconstructions and. combinations, all as hereinafter described and particularly pointed out in the-claimsln the accompanying drawings forming part of this specification.

Figure 1 is a vertical sectional view through a pea separating machineembodying our invention, A Y

Fig. Qis an end' elevation of the same Fig. 3 is a plan view,. 1

Fig. 4L is a detail sectional view ,of the ratchet mechanism by .which` the: desired movement is imparted to -theseparating plates or` pans. I y

Fig. 5 is a sectional View on theV line 5-5 ofFig. L K Y l Fig. ris'a detail viewy ofone ofl the eccentrics through which the desired. movement is imparted to the hopperfeed plate.

ln the drawing,2 represents the frame of the machine of any suitable size. andgco'nstruction. ln .the upper portion.' of this frame is a hopper 3 wherein the mixture of wild peas and grain is placed. This' hopper is provided with the usual slide a for regulating the volume' of feed from the hopper. Beneath the hopper is a feed plate 5 supported by links 6 and 7 from the frame of the machine and operating through rods S which extend to eccentrics 9 011l a shaft 10 that is provided with a fly wheel 11 and is operated through a crank 12. rlhe machine may of course he operated by power if preferred. So far this machine is of ordinary construction and we make no claim thereto, as any suitable means may be employed for delivering the mixture of grain and peas to the'se'parating devices which'we will now describe in detail. y

13 represents a shoe, supported by links la which are pivoted at 15 to the frame of the machine at each end of the shoe. shoe a series of plates or pans 16, 16a, 1Gb and 16C are mounted. The pan 16 is positioned to receive the mixture vof grain and wild peas from the feed plate 5, said pan being inparallel relation with the other pan beneath it and all of them inclined slightly to the horizontal, suiiiciently to cause a Y round body, such as a wild pea, to start and v may be increasedy to any desired extent by the simple multiplication of the pans and the connecting spouts between them. Each spout is so arranged that the mixture of grain and wild peas delivered thereto from the upper end of the pan directly above will be discharged upon'the middle .portion of the pan neXt beneath, where a separation of the grain and peas will take place, the peas that areloosened and separated from the ker-V nels of grain rolling down over the pan while the grain kernels 'and seme of thefpeas not separated at that time willv iiow upwardly and into the adjacent spout beneath for delivery to another pan. Comparatively light coiled springs 18 are connected with the shoe and with the frame of the machine and larger springs 19 are also connected In this' with the shoe and with the machine frame and operate against the tension of the springs 18, as indicated in F ig. l.

To acc-omplish the desired result in machines of this kind, we have found it desirable to move the grain kernels upwardly on the separating pans through a quick jerk,

with a ratchet23 at one end. A dog 24 is mounted on an arm 25 that is secured to V the eccentric faster than the dog and the the shaft l0 and engages the teeth of theV ratchet, being normally held in contact therewith by a spring 26. The revolution of the shaft l0 will', of course, impart a corresponding movement to the arm 25 and the Vdog 24 and the dog engaging the ratchet will revolve the eccentric on which the ratchet wheel is mounted. This movement will continue until the eccentric passes the dead center ofrevolution and at this point the power of the spring 191 will be suflicient to move arm 25 and the result will f be aV quick or abrupt movement of the Vsh-oe in a longitudinal and upward direction, the eccentric slipping on the shaft and moving away from the actuating dog. During this quick upward stroke o f the shoe the grain and Y peas. will be agitated, the kernels of the grain moving toward the upper end of each pan while the peas, separated and loosened from the grain kernels?, will roll down over the pans and be discharged upon the spout 27 and into the boX 28 at one end 'of the machine. The' separating actionon each pan will be the same, the material passing from one pan to another until the bottom pan is reached, where' the grain will be discharged over the upper end of the lower pan into a suitable receptacle, 'not shown, provided for such purpose. Y

f necessary, the grain mayA be passed through the machine again, but generally one operation is suiiicient to remove all or the'greater part of the wild peas.

The pans may, of course, be made of'any suitable length and the number increased according to thefdegree of' separation required and the desired capacity of the machine.V f .Y

The supporting links 14 extend from their point of attachment on the frame downwardly and forwardly when-the shoe is at the limit of its backward movement. The

. ends of the links attached to the shoe deesV scribe the are of a circle when the shoe that the pitch or inclination of the spouts 17, 17a and 171 is considerably greater than that of the separating pans and therefore there is no possibility of the grainy being moved backwardly on these spouts through the gyrating action of the shoe.

1We claim as our invention l. A machine of the class described comprising aV frame, a gang of grain'separatiiig pans pivotally supported in 'said frame 'and means for delivering the grain to be separated upon the upper pan of the gang, cach pan-having a fiat comparatively long separating surface whereon the material to be separated is delivered between the middle portion and the upper ends of the pans, means for gradually imparting a smooth,

initial, backward, non-feeding movement'to Y said pans and afsubsequentfrapid pitchingk Y, forward movement in a combined horizontal and vertical -direction terminating abruptly at the limit of the stroke of said operating means, the elongated substantially cylindrical seeds such as wheat .being fed forwardly and vupwardly by the pitching motion of said gang at the end of itsforward stroke while the sphericalseeds separated from the elongated ones byY the .pitching4 motion of the gang willk roll by gravity to the discharge end of thepans.

Y 2. 1A machine of the class describedrcom-V prising a frame, a gangof grain separating pans pivotally supported in said frame and means foi-delivering the grain to be separated upon the upper pan of the gang, said pans being arrangedl at a slight inclinationV in theV gang and the forward end of each pan projecting in advance of the corresponding end of the pans above, the upper ends ofthe pans dischargingthe elongated seeds and the lower ends dischargingthe spherical seeds, means' for imparting an initial backward movement to said pans,V

springs for imparting a rapid forward movement to said pans in a combined horizontal and vertical direction terminating in an abrupt pitching action atV the end of the stroke of said 'oscillating means, the elongated seeds being fed forwardly and up wardly by the pitching action of ythe pans when near the end of their stroke and discharging lsaid seeds fromthe upper end of one Vpan upon the pan next beneath at a Y point betweeii'the middleportion of the pan and the upper end thereof, the spherical seeds separated byv said pitching action rollper portion of said frame, said pans being arranged one above the other with the forward ends of thepans projecting in advance of the corresponding ends of the pans above, said pans being arranged at a slight incline sufficient to direct spherical seeds downwardly by gravity but insufficient to cause downward movement of elongated seeds, said Vpans having comparatively long separating surfaces on the upper portions of which the material to be separated is direct ed from the separating surface of the pan above, means for delivering a mixture of elongated and spherical seeds to the upper pan of the gang, mechanism connected with said gang Jfor imparting a continuous movement in one direction to said gang at a comparatively slow speed, and springs put under tension by such movement for projecting said gang in the other direction with a the elongated kernels will be fed up the incline of said pans with a step by step movement and the spherical kernels dislodged by the pitching action will roll by gravity to the lower ends of the pans.

fl. A machine of the class described comprising a. frame, a gang of grain sepa-rating pans pivota-lly supported in said frame, means for delivering the grains to be separated upon the upper pans of the gang, said pans being arranged at a slight inclination in the gang, and the forward end of each pan projecting in advance of the corresponding end of the pan above, the upper ends of the pans discharging the elongated seeds and the lower ends discharging the spherical seeds, means for imparting an oscillating movement to said pans, and

means for conducting material passing over the upper end of each pan on to a succeeding pan of the series, at a point approximately near the center of said pan.

In witness whereof, we have hereunto set our hands this 9th day of .l une, 1919.

CHARLES L. PALMER. JOHN R. HOLLISTER.

Vitnesses JNO. CUTTING, EMIL RAsMUssEN. 

